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A study on the DC voltage control techniques of cascaded multilevel APF

  • Hongjuan Fang*
  • , Rongfeng Yang
  • , Yannan Yu
  • , Dianguo Xu
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

For its significant advantages on topology and control techniques, cascaded multilevel inverters has been widely used in the studies of APF (Active power filter) in recent years. The control difficulty of this type converter lies in its DC capacitor voltage balance. Many papers adjust active voltage to solve this problem. But due to the delay of the PI module in these control strategies, a certain phase difference occurs between the actual current and the reference current, affecting the real-time current tracking effect and capacitors balance performance. This paper proposed a novel balance control method that uses the direct current control with transient power regulation for each H-bridge cells to achieve phase to phase and inside phase DC capacitors voltage equilibrium. This method is simple and easy to be implemented. Simulation and engineering results verified the excellent DC capacitors balance performance.

Original languageEnglish
Title of host publicationConference Proceedings - 2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012
Pages2727-2731
Number of pages5
DOIs
StatePublished - 2012
Event2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012 - Harbin, China
Duration: 2 Jun 20125 Jun 2012

Publication series

NameConference Proceedings - 2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012
Volume4

Conference

Conference2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012
Country/TerritoryChina
CityHarbin
Period2/06/125/06/12

Keywords

  • Cascaded APF
  • Cps-spwm
  • Voltage balance

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